configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     if ! mkdir build || ! touch $MARKER
  35     then
  36         echo "ERROR: Could not create ./build directory. Check the permissions on"
  37         echo "your source directory, or try doing an out-of-tree build."
  38         exit 1
  39     fi
  40
  41     cat > GNUmakefile <<'EOF'
  42 # This file is auto-generated by configure to support in-source tree
  43 # 'make' command invocation
  44
  45 ifeq ($(MAKECMDGOALS),)
  46 recurse: all
  47 endif
  48
  49 .NOTPARALLEL: %
  50 %: force
  51         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  52         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  53         @if test "$(MAKECMDGOALS)" = "distclean" && \
  54             test -e build/auto-created-by-configure ; \
  55         then \
  56             rm -rf build GNUmakefile ; \
  57         fi
  58 force: ;
  59 .PHONY: force
  60 GNUmakefile: ;
  61
  62 EOF
  63     cd build
  64     exec "$source_path/configure" "$@"
  65 fi
  66
  67 # Temporary directory used for files created while
  68 # configure runs. Since it is in the build directory
  69 # we can safely blow away any previous version of it
  70 # (and we need not jump through hoops to try to delete
  71 # it when configure exits.)
  72 TMPDIR1="config-temp"
  73 rm -rf "${TMPDIR1}"
  74 if ! mkdir -p "${TMPDIR1}"; then
  75     echo "ERROR: failed to create temporary directory"
  76     exit 1
  77 fi
  78
  79 TMPB="qemu-conf"
  80 TMPC="${TMPDIR1}/${TMPB}.c"
  81 TMPO="${TMPDIR1}/${TMPB}.o"
  82 TMPM="${TMPDIR1}/${TMPB}.m"
  83 TMPE="${TMPDIR1}/${TMPB}.exe"
  84
  85 rm -f config.log
  86
  87 # Print a helpful header at the top of config.log
  88 echo "# QEMU configure log $(date)" >> config.log
  89 printf "# Configured with:" >> config.log
  90 # repeat the invocation to log and stdout for CI
  91 invoke=$(printf " '%s'" "$0" "$@")
  92 test -n "$GITLAB_CI" && echo "configuring with: $invoke"
  93 { echo "$invoke"; echo; echo "#"; } >> config.log
  94
  95 quote_sh() {
  96     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  97 }
  98
  99 print_error() {
 100     (echo
 101     echo "ERROR: $1"
 102     while test -n "$2"; do
 103         echo "       $2"
 104         shift
 105     done
 106     echo) >&2
 107 }
 108
 109 error_exit() {
 110     print_error "$@"
 111     exit 1
 112 }
 113
 114 do_compiler() {
 115   # Run the compiler, capturing its output to the log. First argument
 116   # is compiler binary to execute.
 117   compiler="$1"
 118   shift
 119   if test -n "$BASH_VERSION"; then eval '
 120       echo >>config.log "
 121 funcs: ${FUNCNAME[*]}
 122 lines: ${BASH_LINENO[*]}"
 123   '; fi
 124   echo $compiler "$@" >> config.log
 125   $compiler "$@" >> config.log 2>&1 || return $?
 126 }
 127
 128 do_compiler_werror() {
 129     # Run the compiler, capturing its output to the log. First argument
 130     # is compiler binary to execute.
 131     compiler="$1"
 132     shift
 133     if test -n "$BASH_VERSION"; then eval '
 134         echo >>config.log "
 135 funcs: ${FUNCNAME[*]}
 136 lines: ${BASH_LINENO[*]}"
 137     '; fi
 138     echo $compiler "$@" >> config.log
 139     $compiler "$@" >> config.log 2>&1 || return $?
 140     # Test passed. If this is an --enable-werror build, rerun
 141     # the test with -Werror and bail out if it fails. This
 142     # makes warning-generating-errors in configure test code
 143     # obvious to developers.
 144     if test "$werror" != "yes"; then
 145         return 0
 146     fi
 147     # Don't bother rerunning the compile if we were already using -Werror
 148     case "$*" in
 149         *-Werror*)
 150            return 0
 151         ;;
 152     esac
 153     echo $compiler -Werror "$@" >> config.log
 154     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 155     error_exit "configure test passed without -Werror but failed with -Werror." \
 156         "This is probably a bug in the configure script. The failing command" \
 157         "will be at the bottom of config.log." \
 158         "You can run configure with --disable-werror to bypass this check."
 159 }
 160
 161 do_cc() {
 162     do_compiler_werror "$cc" $CPU_CFLAGS "$@"
 163 }
 164
 165 do_objc() {
 166     do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
 167 }
 168
 169 # Append $2 to the variable named $1, with space separation
 170 add_to() {
 171     eval $1=\${$1:+\"\$$1 \"}\$2
 172 }
 173
 174 compile_object() {
 175   local_cflags="$1"
 176   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 177 }
 178
 179 compile_prog() {
 180   local_cflags="$1"
 181   local_ldflags="$2"
 182   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 183       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 184 }
 185
 186 # symbolically link $1 to $2.  Portable version of "ln -sf".
 187 symlink() {
 188   rm -rf "$2"
 189   mkdir -p "$(dirname "$2")"
 190   ln -s "$1" "$2"
 191 }
 192
 193 # check whether a command is available to this shell (may be either an
 194 # executable or a builtin)
 195 has() {
 196     type "$1" >/dev/null 2>&1
 197 }
 198
 199 version_ge () {
 200     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 201     local_ver2=$(echo "$2" | tr . ' ')
 202     while true; do
 203         set x $local_ver1
 204         local_first=${2-0}
 205         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 206         shift ${2:+2}
 207         local_ver1=$*
 208         set x $local_ver2
 209         # the second argument finished, the first must be greater or equal
 210         test $# = 1 && return 0
 211         test $local_first -lt $2 && return 1
 212         test $local_first -gt $2 && return 0
 213         shift ${2:+2}
 214         local_ver2=$*
 215     done
 216 }
 217
 218 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 219 then
 220   error_exit "main directory cannot contain spaces nor colons"
 221 fi
 222
 223 # default parameters
 224 cpu=""
 225 static="no"
 226 cross_compile="no"
 227 cross_prefix=""
 228 host_cc="cc"
 229 stack_protector=""
 230 safe_stack=""
 231 use_containers="yes"
 232 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 233 gdb_arches=""
 234 glib_has_gslice="no"
 235
 236 if test -e "$source_path/.git"
 237 then
 238     git_submodules_action="update"
 239 else
 240     git_submodules_action="ignore"
 241 fi
 242
 243 git_submodules="ui/keycodemapdb"
 244 git="git"
 245
 246 # Don't accept a target_list environment variable.
 247 unset target_list
 248 unset target_list_exclude
 249
 250 # Default value for a variable defining feature "foo".
 251 #  * foo="no"  feature will only be used if --enable-foo arg is given
 252 #  * foo=""    feature will be searched for, and if found, will be used
 253 #              unless --disable-foo is given
 254 #  * foo="yes" this value will only be set by --enable-foo flag.
 255 #              feature will searched for,
 256 #              if not found, configure exits with error
 257 #
 258 # Always add --enable-foo and --disable-foo command line args.
 259 # Distributions want to ensure that several features are compiled in, and it
 260 # is impossible without a --enable-foo that exits if a feature is not found.
 261
 262 default_feature=""
 263 # parse CC options second
 264 for opt do
 265   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 266   case "$opt" in
 267       --without-default-features)
 268           default_feature="no"
 269   ;;
 270   esac
 271 done
 272
 273 EXTRA_CFLAGS=""
 274 EXTRA_CXXFLAGS=""
 275 EXTRA_OBJCFLAGS=""
 276 EXTRA_LDFLAGS=""
 277
 278 debug_tcg="no"
 279 sanitizers="no"
 280 tsan="no"
 281 fortify_source="yes"
 282 docs="auto"
 283 EXESUF=""
 284 modules="no"
 285 prefix="/usr/local"
 286 qemu_suffix="qemu"
 287 softmmu="yes"
 288 linux_user=""
 289 bsd_user=""
 290 pie=""
 291 coroutine=""
 292 plugins="$default_feature"
 293 ninja=""
 294 bindir="bin"
 295 skip_meson=no
 296 vfio_user_server="disabled"
 297
 298 # The following Meson options are handled manually (still they
 299 # are included in the automatically generated help message)
 300
 301 # 1. Track which submodules are needed
 302 fdt="auto"
 303
 304 # 2. Automatically enable/disable other options
 305 tcg="auto"
 306 cfi="false"
 307
 308 # parse CC options second
 309 for opt do
 310   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 311   case "$opt" in
 312   --cross-prefix=*) cross_prefix="$optarg"
 313                     cross_compile="yes"
 314   ;;
 315   --cc=*) CC="$optarg"
 316   ;;
 317   --cxx=*) CXX="$optarg"
 318   ;;
 319   --objcc=*) objcc="$optarg"
 320   ;;
 321   --cpu=*) cpu="$optarg"
 322   ;;
 323   --extra-cflags=*)
 324     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 325     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 326     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 327     ;;
 328   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 329   ;;
 330   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 331   ;;
 332   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 333   ;;
 334   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 335   ;;
 336   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 337                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 338   ;;
 339   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 340                 eval "cross_cc_${cc_arch}=\$optarg"
 341   ;;
 342   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 343   ;;
 344   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 345                     eval "cross_prefix_${cc_arch}=\$optarg"
 346   ;;
 347   esac
 348 done
 349
 350 # Preferred compiler:
 351 #  ${CC} (if set)
 352 #  ${cross_prefix}gcc (if cross-prefix specified)
 353 #  system compiler
 354 if test -z "${CC}${cross_prefix}"; then
 355   cc="$host_cc"
 356 else
 357   cc="${CC-${cross_prefix}gcc}"
 358 fi
 359
 360 if test -z "${CXX}${cross_prefix}"; then
 361   cxx="c++"
 362 else
 363   cxx="${CXX-${cross_prefix}g++}"
 364 fi
 365
 366 # Preferred ObjC compiler:
 367 # $objcc (if set, i.e. via --objcc option)
 368 # ${cross_prefix}clang (if cross-prefix specified)
 369 # clang (if available)
 370 # $cc
 371 if test -z "${objcc}${cross_prefix}"; then
 372   if has clang; then
 373     objcc=clang
 374   else
 375     objcc="$cc"
 376   fi
 377 else
 378   objcc="${objcc-${cross_prefix}clang}"
 379 fi
 380
 381 ar="${AR-${cross_prefix}ar}"
 382 as="${AS-${cross_prefix}as}"
 383 ccas="${CCAS-$cc}"
 384 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 385 ld="${LD-${cross_prefix}ld}"
 386 ranlib="${RANLIB-${cross_prefix}ranlib}"
 387 nm="${NM-${cross_prefix}nm}"
 388 smbd="$SMBD"
 389 strip="${STRIP-${cross_prefix}strip}"
 390 widl="${WIDL-${cross_prefix}widl}"
 391 windres="${WINDRES-${cross_prefix}windres}"
 392 windmc="${WINDMC-${cross_prefix}windmc}"
 393 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 394 query_pkg_config() {
 395     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 396 }
 397 pkg_config=query_pkg_config
 398 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 399
 400 # default flags for all hosts
 401 # We use -fwrapv to tell the compiler that we require a C dialect where
 402 # left shift of signed integers is well defined and has the expected
 403 # 2s-complement style results. (Both clang and gcc agree that it
 404 # provides these semantics.)
 405 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 406 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 407
 408 QEMU_LDFLAGS=
 409
 410 # Flags that are needed during configure but later taken care of by Meson
 411 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 412 CONFIGURE_LDFLAGS=
 413
 414
 415 check_define() {
 416 cat > $TMPC <<EOF
 417 #if !defined($1)
 418 #error $1 not defined
 419 #endif
 420 int main(void) { return 0; }
 421 EOF
 422   compile_object
 423 }
 424
 425 check_include() {
 426 cat > $TMPC <<EOF
 427 #include <$1>
 428 int main(void) { return 0; }
 429 EOF
 430   compile_object
 431 }
 432
 433 write_c_skeleton() {
 434     cat > $TMPC <<EOF
 435 int main(void) { return 0; }
 436 EOF
 437 }
 438
 439 if check_define __linux__ ; then
 440   targetos=linux
 441 elif check_define _WIN32 ; then
 442   targetos=windows
 443 elif check_define __OpenBSD__ ; then
 444   targetos=openbsd
 445 elif check_define __sun__ ; then
 446   targetos=sunos
 447 elif check_define __HAIKU__ ; then
 448   targetos=haiku
 449 elif check_define __FreeBSD__ ; then
 450   targetos=freebsd
 451 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 452   targetos=gnu/kfreebsd
 453 elif check_define __DragonFly__ ; then
 454   targetos=dragonfly
 455 elif check_define __NetBSD__; then
 456   targetos=netbsd
 457 elif check_define __APPLE__; then
 458   targetos=darwin
 459 else
 460   # This is a fatal error, but don't report it yet, because we
 461   # might be going to just print the --help text, or it might
 462   # be the result of a missing compiler.
 463   targetos=bogus
 464 fi
 465
 466 # OS specific
 467
 468 mingw32="no"
 469 bsd="no"
 470 linux="no"
 471 solaris="no"
 472 case $targetos in
 473 windows)
 474   mingw32="yes"
 475   plugins="no"
 476   pie="no"
 477 ;;
 478 gnu/kfreebsd)
 479   bsd="yes"
 480 ;;
 481 freebsd)
 482   bsd="yes"
 483   make="${MAKE-gmake}"
 484   # needed for kinfo_getvmmap(3) in libutil.h
 485 ;;
 486 dragonfly)
 487   bsd="yes"
 488   make="${MAKE-gmake}"
 489 ;;
 490 netbsd)
 491   bsd="yes"
 492   make="${MAKE-gmake}"
 493 ;;
 494 openbsd)
 495   bsd="yes"
 496   make="${MAKE-gmake}"
 497 ;;
 498 darwin)
 499   bsd="yes"
 500   darwin="yes"
 501   # Disable attempts to use ObjectiveC features in os/object.h since they
 502   # won't work when we're compiling with gcc as a C compiler.
 503   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 504 ;;
 505 sunos)
 506   solaris="yes"
 507   make="${MAKE-gmake}"
 508 # needed for CMSG_ macros in sys/socket.h
 509   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 510 # needed for TIOCWIN* defines in termios.h
 511   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 512 ;;
 513 haiku)
 514   pie="no"
 515   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 516 ;;
 517 linux)
 518   linux="yes"
 519 ;;
 520 esac
 521
 522 if test ! -z "$cpu" ; then
 523   # command line argument
 524   :
 525 elif check_define __i386__ ; then
 526   cpu="i386"
 527 elif check_define __x86_64__ ; then
 528   if check_define __ILP32__ ; then
 529     cpu="x32"
 530   else
 531     cpu="x86_64"
 532   fi
 533 elif check_define __sparc__ ; then
 534   if check_define __arch64__ ; then
 535     cpu="sparc64"
 536   else
 537     cpu="sparc"
 538   fi
 539 elif check_define _ARCH_PPC ; then
 540   if check_define _ARCH_PPC64 ; then
 541     if check_define _LITTLE_ENDIAN ; then
 542       cpu="ppc64le"
 543     else
 544       cpu="ppc64"
 545     fi
 546   else
 547     cpu="ppc"
 548   fi
 549 elif check_define __mips__ ; then
 550   cpu="mips"
 551 elif check_define __s390__ ; then
 552   if check_define __s390x__ ; then
 553     cpu="s390x"
 554   else
 555     cpu="s390"
 556   fi
 557 elif check_define __riscv ; then
 558   cpu="riscv"
 559 elif check_define __arm__ ; then
 560   cpu="arm"
 561 elif check_define __aarch64__ ; then
 562   cpu="aarch64"
 563 elif check_define __loongarch64 ; then
 564   cpu="loongarch64"
 565 else
 566   # Using uname is really broken, but it is just a fallback for architectures
 567   # that are going to use TCI anyway
 568   cpu=$(uname -m)
 569   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 570 fi
 571
 572 # Normalise host CPU name and set multilib cflags.  The canonicalization
 573 # isn't really necessary, because the architectures that we check for
 574 # should not hit the 'uname -m' case, but better safe than sorry.
 575 # Note that this case should only have supported host CPUs, not guests.
 576 case "$cpu" in
 577   armv*b|armv*l|arm)
 578     cpu="arm" ;;
 579
 580   i386|i486|i586|i686)
 581     cpu="i386"
 582     CPU_CFLAGS="-m32" ;;
 583   x32)
 584     cpu="x86_64"
 585     CPU_CFLAGS="-mx32" ;;
 586   x86_64|amd64)
 587     cpu="x86_64"
 588     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 589     # If we truly care, we should simply detect this case at
 590     # runtime and generate the fallback to serial emulation.
 591     CPU_CFLAGS="-m64 -mcx16" ;;
 592
 593   mips*)
 594     cpu="mips" ;;
 595
 596   ppc)
 597     CPU_CFLAGS="-m32" ;;
 598   ppc64)
 599     CPU_CFLAGS="-m64 -mbig-endian" ;;
 600   ppc64le)
 601     cpu="ppc64"
 602     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 603
 604   s390)
 605     CPU_CFLAGS="-m31" ;;
 606   s390x)
 607     CPU_CFLAGS="-m64" ;;
 608
 609   sparc|sun4[cdmuv])
 610     cpu="sparc"
 611     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 612   sparc64)
 613     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 614 esac
 615
 616 : ${make=${MAKE-make}}
 617
 618
 619 check_py_version() {
 620     # We require python >= 3.7.
 621     # NB: a True python conditional creates a non-zero return code (Failure)
 622     "$1" -c 'import sys; sys.exit(sys.version_info < (3,7))'
 623 }
 624
 625 python=
 626 pypi="enabled"
 627 first_python=
 628 if test -z "${PYTHON}"; then
 629     # A bare 'python' is traditionally python 2.x, but some distros
 630     # have it as python 3.x, so check in both places.
 631     for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7; do
 632         if has "$binary"; then
 633             python=$(command -v "$binary")
 634             if check_py_version "$python"; then
 635                 # This one is good.
 636                 first_python=
 637                 break
 638             else
 639                 first_python=$python
 640             fi
 641         fi
 642     done
 643 else
 644     # Same as above, but only check the environment variable.
 645     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 646     python=$(command -v "$PYTHON")
 647     if check_py_version "$python"; then
 648         # This one is good.
 649         first_python=
 650     else
 651         first_python=$first_python
 652     fi
 653 fi
 654
 655 # Check for ancillary tools used in testing
 656 genisoimage=
 657 for binary in genisoimage mkisofs
 658 do
 659     if has $binary
 660     then
 661         genisoimage=$(command -v "$binary")
 662         break
 663     fi
 664 done
 665
 666 if test "$mingw32" = "yes" ; then
 667   EXESUF=".exe"
 668   # MinGW needs -mthreads for TLS and macro _MT.
 669   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 670   prefix="/qemu"
 671   bindir=""
 672   qemu_suffix=""
 673 fi
 674
 675 werror=""
 676
 677 meson_option_build_array() {
 678   printf '['
 679   (if test "$targetos" = windows; then
 680     IFS=\;
 681   else
 682     IFS=:
 683   fi
 684   for e in $1; do
 685     printf '"""'
 686     # backslash escape any '\' and '"' characters
 687     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 688     printf '""",'
 689   done)
 690   printf ']\n'
 691 }
 692
 693 . "$source_path/scripts/meson-buildoptions.sh"
 694
 695 meson_options=
 696 meson_option_add() {
 697   meson_options="$meson_options $(quote_sh "$1")"
 698 }
 699 meson_option_parse() {
 700   meson_options="$meson_options $(_meson_option_parse "$@")"
 701   if test $? -eq 1; then
 702     echo "ERROR: unknown option $1"
 703     echo "Try '$0 --help' for more information"
 704     exit 1
 705   fi
 706 }
 707
 708 for opt do
 709   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 710   case "$opt" in
 711   --help|-h) show_help=yes
 712   ;;
 713   --version|-V) exec cat "$source_path/VERSION"
 714   ;;
 715   --prefix=*) prefix="$optarg"
 716   ;;
 717   --cross-prefix=*)
 718   ;;
 719   --cc=*)
 720   ;;
 721   --host-cc=*) host_cc="$optarg"
 722   ;;
 723   --cxx=*)
 724   ;;
 725   --objcc=*)
 726   ;;
 727   --make=*) make="$optarg"
 728   ;;
 729   --install=*)
 730   ;;
 731   --python=*) python="$optarg"
 732   ;;
 733   --skip-meson) skip_meson=yes
 734   ;;
 735   --ninja=*) ninja="$optarg"
 736   ;;
 737   --smbd=*) smbd="$optarg"
 738   ;;
 739   --extra-cflags=*)
 740   ;;
 741   --extra-cxxflags=*)
 742   ;;
 743   --extra-objcflags=*)
 744   ;;
 745   --extra-ldflags=*)
 746   ;;
 747   --cross-cc-*)
 748   ;;
 749   --cross-prefix-*)
 750   ;;
 751   --enable-debug-info) meson_option_add -Ddebug=true
 752   ;;
 753   --disable-debug-info) meson_option_add -Ddebug=false
 754   ;;
 755   --enable-docs) docs=enabled
 756   ;;
 757   --disable-docs) docs=disabled
 758   ;;
 759   --enable-modules)
 760       modules="yes"
 761   ;;
 762   --disable-modules)
 763       modules="no"
 764   ;;
 765   --cpu=*)
 766   ;;
 767   --target-list=*) target_list="$optarg"
 768                    if test "$target_list_exclude"; then
 769                        error_exit "Can't mix --target-list with --target-list-exclude"
 770                    fi
 771   ;;
 772   --target-list-exclude=*) target_list_exclude="$optarg"
 773                    if test "$target_list"; then
 774                        error_exit "Can't mix --target-list-exclude with --target-list"
 775                    fi
 776   ;;
 777   --with-default-devices) meson_option_add -Ddefault_devices=true
 778   ;;
 779   --without-default-devices) meson_option_add -Ddefault_devices=false
 780   ;;
 781   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 782   ;;
 783   --with-devices-*) device_arch=${opt#--with-devices-};
 784                     device_arch=${device_arch%%=*}
 785                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 786                     if test -f "$cf"; then
 787                         device_archs="$device_archs $device_arch"
 788                         eval "devices_${device_arch}=\$optarg"
 789                     else
 790                         error_exit "File $cf does not exist"
 791                     fi
 792   ;;
 793   --without-default-features) # processed above
 794   ;;
 795   --static)
 796     static="yes"
 797     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 798   ;;
 799   --bindir=*) bindir="$optarg"
 800   ;;
 801   --with-suffix=*) qemu_suffix="$optarg"
 802   ;;
 803   --host=*|--build=*|\
 804   --disable-dependency-tracking|\
 805   --sbindir=*|--sharedstatedir=*|\
 806   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 807   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 808     # These switches are silently ignored, for compatibility with
 809     # autoconf-generated configure scripts. This allows QEMU's
 810     # configure to be used by RPM and similar macros that set
 811     # lots of directory switches by default.
 812   ;;
 813   --enable-debug-tcg) debug_tcg="yes"
 814   ;;
 815   --disable-debug-tcg) debug_tcg="no"
 816   ;;
 817   --enable-debug)
 818       # Enable debugging options that aren't excessively noisy
 819       debug_tcg="yes"
 820       meson_option_parse --enable-debug-graph-lock ""
 821       meson_option_parse --enable-debug-mutex ""
 822       meson_option_add -Doptimization=0
 823       fortify_source="no"
 824   ;;
 825   --enable-sanitizers) sanitizers="yes"
 826   ;;
 827   --disable-sanitizers) sanitizers="no"
 828   ;;
 829   --enable-tsan) tsan="yes"
 830   ;;
 831   --disable-tsan) tsan="no"
 832   ;;
 833   --disable-tcg) tcg="disabled"
 834                  plugins="no"
 835   ;;
 836   --enable-tcg) tcg="enabled"
 837   ;;
 838   --disable-system) softmmu="no"
 839   ;;
 840   --enable-system) softmmu="yes"
 841   ;;
 842   --disable-user)
 843       linux_user="no" ;
 844       bsd_user="no" ;
 845   ;;
 846   --enable-user) ;;
 847   --disable-linux-user) linux_user="no"
 848   ;;
 849   --enable-linux-user) linux_user="yes"
 850   ;;
 851   --disable-bsd-user) bsd_user="no"
 852   ;;
 853   --enable-bsd-user) bsd_user="yes"
 854   ;;
 855   --enable-pie) pie="yes"
 856   ;;
 857   --disable-pie) pie="no"
 858   ;;
 859   --enable-werror) werror="yes"
 860   ;;
 861   --disable-werror) werror="no"
 862   ;;
 863   --enable-stack-protector) stack_protector="yes"
 864   ;;
 865   --disable-stack-protector) stack_protector="no"
 866   ;;
 867   --enable-safe-stack) safe_stack="yes"
 868   ;;
 869   --disable-safe-stack) safe_stack="no"
 870   ;;
 871   --enable-cfi)
 872       cfi="true";
 873       meson_option_add -Db_lto=true
 874   ;;
 875   --disable-cfi) cfi="false"
 876   ;;
 877   --disable-fdt) fdt="disabled"
 878   ;;
 879   --enable-fdt) fdt="enabled"
 880   ;;
 881   --enable-fdt=git) fdt="internal"
 882   ;;
 883   --enable-fdt=*) fdt="$optarg"
 884   ;;
 885   --with-coroutine=*) coroutine="$optarg"
 886   ;;
 887   --with-git=*) git="$optarg"
 888   ;;
 889   --with-git-submodules=*)
 890       git_submodules_action="$optarg"
 891   ;;
 892   --disable-pypi) pypi="disabled"
 893   ;;
 894   --enable-pypi) pypi="enabled"
 895   ;;
 896   --enable-plugins) if test "$mingw32" = "yes"; then
 897                         error_exit "TCG plugins not currently supported on Windows platforms"
 898                     else
 899                         plugins="yes"
 900                     fi
 901   ;;
 902   --disable-plugins) plugins="no"
 903   ;;
 904   --enable-containers) use_containers="yes"
 905   ;;
 906   --disable-containers) use_containers="no"
 907   ;;
 908   --gdb=*) gdb_bin="$optarg"
 909   ;;
 910   --enable-vfio-user-server) vfio_user_server="enabled"
 911   ;;
 912   --disable-vfio-user-server) vfio_user_server="disabled"
 913   ;;
 914   # everything else has the same name in configure and meson
 915   --*) meson_option_parse "$opt" "$optarg"
 916   ;;
 917   esac
 918 done
 919
 920 # test for any invalid configuration combinations
 921 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 922     error_exit "Can't enable plugins on non-TCG builds"
 923 fi
 924
 925 case $git_submodules_action in
 926     update|validate)
 927         if test ! -e "$source_path/.git"; then
 928             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 929             exit 1
 930         fi
 931     ;;
 932     ignore)
 933         if ! test -f "$source_path/ui/keycodemapdb/README"
 934         then
 935             echo
 936             echo "ERROR: missing GIT submodules"
 937             echo
 938             if test -e "$source_path/.git"; then
 939                 echo "--with-git-submodules=ignore specified but submodules were not"
 940                 echo "checked out.  Please initialize and update submodules."
 941             else
 942                 echo "This is not a GIT checkout but module content appears to"
 943                 echo "be missing. Do not use 'git archive' or GitHub download links"
 944                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 945                 echo "supported with source archives linked from:"
 946                 echo
 947                 echo "  https://www.qemu.org/download/#source"
 948                 echo
 949                 echo "Developers working with GIT can use scripts/archive-source.sh"
 950                 echo "if they need to create valid source archives."
 951             fi
 952             echo
 953             exit 1
 954         fi
 955     ;;
 956     *)
 957         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 958         exit 1
 959     ;;
 960 esac
 961
 962 default_target_list=""
 963 mak_wilds=""
 964
 965 if [ "$linux_user" != no ]; then
 966     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 967         linux_user=yes
 968     elif [ "$linux_user" = yes ]; then
 969         error_exit "linux-user not supported on this architecture"
 970     fi
 971 fi
 972 if [ "$bsd_user" != no ]; then
 973     if [ "$bsd_user" = "" ]; then
 974         test $targetos = freebsd && bsd_user=yes
 975     fi
 976     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 977         error_exit "bsd-user not supported on this host OS"
 978     fi
 979 fi
 980 if [ "$softmmu" = "yes" ]; then
 981     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 982 fi
 983 if [ "$linux_user" = "yes" ]; then
 984     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 985 fi
 986 if [ "$bsd_user" = "yes" ]; then
 987     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 988 fi
 989
 990 for config in $mak_wilds; do
 991     target="$(basename "$config" .mak)"
 992     if echo "$target_list_exclude" | grep -vq "$target"; then
 993         default_target_list="${default_target_list} $target"
 994     fi
 995 done
 996
 997 if test x"$show_help" = x"yes" ; then
 998 cat << EOF
 999
1000 Usage: configure [options]
1001 Options: [defaults in brackets after descriptions]
1002
1003 Standard options:
1004   --help                   print this message
1005   --prefix=PREFIX          install in PREFIX [$prefix]
1006   --target-list=LIST       set target list (default: build all)
1007 $(echo Available targets: $default_target_list | \
1008   fold -s -w 53 | sed -e 's/^/                           /')
1009   --target-list-exclude=LIST exclude a set of targets from the default target-list
1010
1011 Advanced options (experts only):
1012   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1013   --cc=CC                  use C compiler CC [$cc]
1014   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1015                            build time
1016   --cxx=CXX                use C++ compiler CXX [$cxx]
1017   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1018   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1019   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1020   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1021   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1022   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1023   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1024   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
1025   --make=MAKE              use specified make [$make]
1026   --python=PYTHON          use specified python [$python]
1027   --ninja=NINJA            use specified ninja [$ninja]
1028   --smbd=SMBD              use specified smbd [$smbd]
1029   --with-git=GIT           use specified git [$git]
1030   --with-git-submodules=update   update git submodules (default if .git dir exists)
1031   --with-git-submodules=validate fail if git submodules are not up to date
1032   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1033   --static                 enable static build [$static]
1034   --bindir=PATH            install binaries in PATH
1035   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1036   --without-default-features default all --enable-* options to "disabled"
1037   --without-default-devices  do not include any device that is not needed to
1038                            start the emulator (only use if you are including
1039                            desired devices in configs/devices/)
1040   --with-devices-ARCH=NAME override default configs/devices
1041   --enable-debug           enable common debug build options
1042   --enable-sanitizers      enable default sanitizers
1043   --enable-tsan            enable thread sanitizer
1044   --disable-werror         disable compilation abort on warning
1045   --disable-stack-protector disable compiler-provided stack protection
1046   --cpu=CPU                Build for host CPU [$cpu]
1047   --with-coroutine=BACKEND coroutine backend. Supported options:
1048                            ucontext, sigaltstack, windows
1049   --enable-plugins
1050                            enable plugins via shared library loading
1051   --disable-containers     don't use containers for cross-building
1052   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1053 EOF
1054   meson_options_help
1055 cat << EOF
1056   system          all system emulation targets
1057   user            supported user emulation targets
1058   linux-user      all linux usermode emulation targets
1059   bsd-user        all BSD usermode emulation targets
1060   pie             Position Independent Executables
1061   modules         modules support (non-Windows)
1062   debug-tcg       TCG debugging (default is disabled)
1063   debug-info      debugging information
1064   safe-stack      SafeStack Stack Smash Protection. Depends on
1065                   clang/llvm and requires coroutine backend ucontext.
1066
1067 NOTE: The object files are built at the place where configure is launched
1068 EOF
1069 exit 0
1070 fi
1071
1072 # Remove old dependency files to make sure that they get properly regenerated
1073 rm -f ./*/config-devices.mak.d
1074
1075 if test -z "$python"
1076 then
1077     # If first_python is set, there was a binary somewhere even though
1078     # it was not suitable.  Use it for the error message.
1079     if test -n "$first_python"; then
1080         error_exit "Cannot use '$first_python', Python >= 3.7 is required." \
1081             "Use --python=/path/to/python to specify a supported Python."
1082     else
1083         error_exit "Python not found. Use --python=/path/to/python"
1084     fi
1085 fi
1086
1087 if ! has "$make"
1088 then
1089     error_exit "GNU make ($make) not found"
1090 fi
1091
1092 if ! check_py_version "$python"; then
1093   error_exit "Cannot use '$python', Python >= 3.7 is required." \
1094              "Use --python=/path/to/python to specify a supported Python." \
1095              "Maybe try:" \
1096              "  openSUSE Leap 15.3+: zypper install python39" \
1097              "  CentOS 8: dnf install python38"
1098 fi
1099
1100 # Resolve PATH
1101 python="$(command -v "$python")"
1102
1103 # Create a Python virtual environment using our configured python.
1104 # The stdout of this script will be the location of a symlink that
1105 # points to the configured Python.
1106 # Entry point scripts for pip, meson, and sphinx are generated if those
1107 # packages are present.
1108
1109 # Defaults assumed for now:
1110 # - venv is cleared if it exists already;
1111 # - venv is allowed to use system packages;
1112 # - all setup can be performed offline;
1113 # - missing packages may be fetched from PyPI,
1114 #   unless --disable-pypi is passed.
1115 # - pip is not installed into the venv when possible,
1116 #   but ensurepip is called as a fallback when necessary.
1117
1118 echo "python determined to be '$python'"
1119 echo "python version: $($python --version)"
1120
1121 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
1122 if test "$?" -ne 0 ; then
1123     error_exit "python venv creation failed"
1124 fi
1125
1126 # Suppress writing compiled files
1127 python="$python -B"
1128 mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
1129
1130 mkvenv_flags=""
1131 if test "$pypi" = "enabled" ; then
1132     mkvenv_flags="--online"
1133 fi
1134
1135 if ! $mkvenv ensure \
1136      $mkvenv_flags \
1137      --dir "${source_path}/python/wheels" \
1138      --diagnose "meson" \
1139      "meson>=0.63.0" ;
1140 then
1141     exit 1
1142 fi
1143
1144 # At this point, we expect Meson to be installed and available.
1145 # We expect mkvenv or pip to have created pyvenv/bin/meson for us.
1146 # We ignore PATH completely here: we want to use the venv's Meson
1147 # *exclusively*.
1148
1149 meson="$(cd pyvenv/bin; pwd)/meson"
1150
1151 # Conditionally ensure Sphinx is installed.
1152
1153 mkvenv_flags=""
1154 if test "$pypi" = "enabled" -a "$docs" = "enabled" ; then
1155     mkvenv_flags="--online"
1156 fi
1157
1158 if test "$docs" != "disabled" ; then
1159     if ! $mkvenv ensure \
1160          $mkvenv_flags \
1161          --diagnose "sphinx-build" \
1162          "sphinx>=1.6.0" "sphinx-rtd-theme>=0.5.0";
1163     then
1164         if test "$docs" = "enabled" ; then
1165             exit 1
1166         fi
1167         echo "Sphinx not found/usable, disabling docs."
1168         docs=disabled
1169     else
1170         docs=enabled
1171     fi
1172 fi
1173
1174 # Probe for ninja
1175
1176 if test -z "$ninja"; then
1177     for c in ninja ninja-build samu; do
1178         if has $c; then
1179             ninja=$(command -v "$c")
1180             break
1181         fi
1182     done
1183     if test -z "$ninja"; then
1184       error_exit "Cannot find Ninja"
1185     fi
1186 fi
1187
1188 # Check that the C compiler works. Doing this here before testing
1189 # the host CPU ensures that we had a valid CC to autodetect the
1190 # $cpu var (and we should bail right here if that's not the case).
1191 # It also allows the help message to be printed without a CC.
1192 write_c_skeleton;
1193 if compile_object ; then
1194   : C compiler works ok
1195 else
1196     error_exit "\"$cc\" either does not exist or does not work"
1197 fi
1198 if ! compile_prog ; then
1199     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1200 fi
1201
1202 # Consult white-list to determine whether to enable werror
1203 # by default.  Only enable by default for git builds
1204 if test -z "$werror" ; then
1205     if test "$git_submodules_action" != "ignore" && \
1206         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1207         werror="yes"
1208     else
1209         werror="no"
1210     fi
1211 fi
1212
1213 if test "$targetos" = "bogus"; then
1214     # Now that we know that we're not printing the help and that
1215     # the compiler works (so the results of the check_defines we used
1216     # to identify the OS are reliable), if we didn't recognize the
1217     # host OS we should stop now.
1218     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1219 fi
1220
1221 # Check whether the compiler matches our minimum requirements:
1222 cat > $TMPC << EOF
1223 #if defined(__clang_major__) && defined(__clang_minor__)
1224 # ifdef __apple_build_version__
1225 #  if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
1226 #   error You need at least XCode Clang v12.0 to compile QEMU
1227 #  endif
1228 # else
1229 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1230 #   error You need at least Clang v10.0 to compile QEMU
1231 #  endif
1232 # endif
1233 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1234 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1235 #  error You need at least GCC v7.4.0 to compile QEMU
1236 # endif
1237 #else
1238 # error You either need GCC or Clang to compiler QEMU
1239 #endif
1240 int main (void) { return 0; }
1241 EOF
1242 if ! compile_prog "" "" ; then
1243     error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
1244 fi
1245
1246 # Accumulate -Wfoo and -Wno-bar separately.
1247 # We will list all of the enable flags first, and the disable flags second.
1248 # Note that we do not add -Werror, because that would enable it for all
1249 # configure tests. If a configure test failed due to -Werror this would
1250 # just silently disable some features, so it's too error prone.
1251
1252 warn_flags=
1253 add_to warn_flags -Wundef
1254 add_to warn_flags -Wwrite-strings
1255 add_to warn_flags -Wmissing-prototypes
1256 add_to warn_flags -Wstrict-prototypes
1257 add_to warn_flags -Wredundant-decls
1258 add_to warn_flags -Wold-style-declaration
1259 add_to warn_flags -Wold-style-definition
1260 add_to warn_flags -Wtype-limits
1261 add_to warn_flags -Wformat-security
1262 add_to warn_flags -Wformat-y2k
1263 add_to warn_flags -Winit-self
1264 add_to warn_flags -Wignored-qualifiers
1265 add_to warn_flags -Wempty-body
1266 add_to warn_flags -Wnested-externs
1267 add_to warn_flags -Wendif-labels
1268 add_to warn_flags -Wexpansion-to-defined
1269 add_to warn_flags -Wimplicit-fallthrough=2
1270 add_to warn_flags -Wmissing-format-attribute
1271
1272 if test "$targetos" != "darwin"; then
1273     add_to warn_flags -Wthread-safety
1274 fi
1275
1276 nowarn_flags=
1277 add_to nowarn_flags -Wno-initializer-overrides
1278 add_to nowarn_flags -Wno-missing-include-dirs
1279 add_to nowarn_flags -Wno-shift-negative-value
1280 add_to nowarn_flags -Wno-string-plus-int
1281 add_to nowarn_flags -Wno-typedef-redefinition
1282 add_to nowarn_flags -Wno-tautological-type-limit-compare
1283 add_to nowarn_flags -Wno-psabi
1284 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1285
1286 gcc_flags="$warn_flags $nowarn_flags"
1287
1288 cc_has_warning_flag() {
1289     write_c_skeleton;
1290
1291     # Use the positive sense of the flag when testing for -Wno-wombat
1292     # support (gcc will happily accept the -Wno- form of unknown
1293     # warning options).
1294     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1295     compile_prog "-Werror $optflag" ""
1296 }
1297
1298 objcc_has_warning_flag() {
1299     cat > $TMPM <<EOF
1300 int main(void) { return 0; }
1301 EOF
1302
1303     # Use the positive sense of the flag when testing for -Wno-wombat
1304     # support (gcc will happily accept the -Wno- form of unknown
1305     # warning options).
1306     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1307     do_objc -Werror $optflag \
1308       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1309       -o $TMPE $TMPM $QEMU_LDFLAGS
1310 }
1311
1312 for flag in $gcc_flags; do
1313     if cc_has_warning_flag $flag ; then
1314         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1315     fi
1316     if objcc_has_warning_flag $flag ; then
1317         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1318     fi
1319 done
1320
1321 if test "$stack_protector" != "no"; then
1322   cat > $TMPC << EOF
1323 int main(int argc, char *argv[])
1324 {
1325     char arr[64], *p = arr, *c = argv[argc - 1];
1326     while (*c) {
1327         *p++ = *c++;
1328     }
1329     return 0;
1330 }
1331 EOF
1332   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1333   sp_on=0
1334   for flag in $gcc_flags; do
1335     # We need to check both a compile and a link, since some compiler
1336     # setups fail only on a .c->.o compile and some only at link time
1337     if compile_object "-Werror $flag" &&
1338        compile_prog "-Werror $flag" ""; then
1339       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1340       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1341       sp_on=1
1342       break
1343     fi
1344   done
1345   if test "$stack_protector" = yes; then
1346     if test $sp_on = 0; then
1347       error_exit "Stack protector not supported"
1348     fi
1349   fi
1350 fi
1351
1352 # Our module code doesn't support Windows
1353 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1354   error_exit "Modules are not available for Windows"
1355 fi
1356
1357 # Static linking is not possible with plugins, modules or PIE
1358 if test "$static" = "yes" ; then
1359   if test "$modules" = "yes" ; then
1360     error_exit "static and modules are mutually incompatible"
1361   fi
1362   if test "$plugins" = "yes"; then
1363     error_exit "static and plugins are mutually incompatible"
1364   else
1365     plugins="no"
1366   fi
1367 fi
1368 test "$plugins" = "" && plugins=yes
1369
1370 cat > $TMPC << EOF
1371
1372 #ifdef __linux__
1373 #  define THREAD __thread
1374 #else
1375 #  define THREAD
1376 #endif
1377 static THREAD int tls_var;
1378 int main(void) { return tls_var; }
1379 EOF
1380
1381 # Meson currently only handles pie as a boolean for now so if we have
1382 # explicitly disabled PIE we need to extend our cflags because it wont.
1383 if test "$static" = "yes"; then
1384   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1385     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1386     pie="yes"
1387   elif test "$pie" = "yes"; then
1388     error_exit "-static-pie not available due to missing toolchain support"
1389   else
1390     pie="no"
1391     QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS"
1392   fi
1393 elif test "$pie" = "no"; then
1394   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1395     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1396     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1397     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1398   fi
1399 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1400   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1401   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1402   pie="yes"
1403 elif test "$pie" = "yes"; then
1404   error_exit "PIE not available due to missing toolchain support"
1405 else
1406   echo "Disabling PIE due to missing toolchain support"
1407   pie="no"
1408 fi
1409
1410 ##########################################
1411 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1412 # use i686 as default anyway, but for those that don't, an explicit
1413 # specification is necessary
1414
1415 if test "$cpu" = "i386"; then
1416   cat > $TMPC << EOF
1417 static int sfaa(int *ptr)
1418 {
1419   return __sync_fetch_and_and(ptr, 0);
1420 }
1421
1422 int main(void)
1423 {
1424   int val = 42;
1425   val = __sync_val_compare_and_swap(&val, 0, 1);
1426   sfaa(&val);
1427   return val;
1428 }
1429 EOF
1430   if ! compile_prog "" "" ; then
1431     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1432   fi
1433 fi
1434
1435 if test -z "${target_list+xxx}" ; then
1436     default_targets=yes
1437     for target in $default_target_list; do
1438         target_list="$target_list $target"
1439     done
1440     target_list="${target_list# }"
1441 else
1442     default_targets=no
1443     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1444     for target in $target_list; do
1445         # Check that we recognised the target name; this allows a more
1446         # friendly error message than if we let it fall through.
1447         case " $default_target_list " in
1448             *" $target "*)
1449                 ;;
1450             *)
1451                 error_exit "Unknown target name '$target'"
1452                 ;;
1453         esac
1454     done
1455 fi
1456
1457 # see if system emulation was really requested
1458 case " $target_list " in
1459   *"-softmmu "*) softmmu=yes
1460   ;;
1461   *) softmmu=no
1462   ;;
1463 esac
1464
1465 if test "$tcg" = "auto"; then
1466   if test -z "$target_list"; then
1467     tcg="disabled"
1468   else
1469     tcg="enabled"
1470   fi
1471 fi
1472
1473 if test "$tcg" = "enabled"; then
1474     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1475     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1476 fi
1477
1478 ##########################################
1479 # big/little endian test
1480 cat > $TMPC << EOF
1481 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1482 # error LITTLE
1483 #endif
1484 int main(void) { return 0; }
1485 EOF
1486
1487 if ! compile_prog ; then
1488   bigendian="no"
1489 else
1490   cat > $TMPC << EOF
1491 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1492 # error BIG
1493 #endif
1494 int main(void) { return 0; }
1495 EOF
1496
1497   if ! compile_prog ; then
1498     bigendian="yes"
1499   else
1500     echo big/little test failed
1501     exit 1
1502   fi
1503 fi
1504
1505 ##########################################
1506 # pkg-config probe
1507
1508 if ! has "$pkg_config_exe"; then
1509   error_exit "pkg-config binary '$pkg_config_exe' not found"
1510 fi
1511
1512 ##########################################
1513 # glib support probe
1514
1515 # When bumping glib_req_ver, please check also whether we should increase
1516 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1517 glib_req_ver=2.56
1518 glib_modules=gthread-2.0
1519 if test "$modules" = yes; then
1520     glib_modules="$glib_modules gmodule-export-2.0"
1521 elif test "$plugins" = "yes"; then
1522     glib_modules="$glib_modules gmodule-no-export-2.0"
1523 fi
1524
1525 for i in $glib_modules; do
1526     if $pkg_config --atleast-version=$glib_req_ver $i; then
1527         glib_cflags=$($pkg_config --cflags $i)
1528         glib_libs=$($pkg_config --libs $i)
1529     else
1530         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1531     fi
1532 done
1533
1534 # Check whether glib has gslice, which we have to avoid for correctness.
1535 # TODO: remove this check and the corresponding workaround (qtree) when
1536 # the minimum supported glib is >= $glib_dropped_gslice_version.
1537 glib_dropped_gslice_version=2.75.3
1538 for i in $glib_modules; do
1539     if ! $pkg_config --atleast-version=$glib_dropped_gslice_version $i; then
1540         glib_has_gslice="yes"
1541         break
1542     fi
1543 done
1544
1545 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1546 if test -z "$glib_bindir" ; then
1547         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1548 fi
1549
1550 # This workaround is required due to a bug in pkg-config file for glib as it
1551 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1552
1553 if test "$static" = yes && test "$mingw32" = yes; then
1554     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1555 fi
1556
1557 # Sanity check that the current size_t matches the
1558 # size that glib thinks it should be. This catches
1559 # problems on multi-arch where people try to build
1560 # 32-bit QEMU while pointing at 64-bit glib headers
1561 cat > $TMPC <<EOF
1562 #include <glib.h>
1563 #include <unistd.h>
1564
1565 #define QEMU_BUILD_BUG_ON(x) \
1566   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1567
1568 int main(void) {
1569    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1570    return 0;
1571 }
1572 EOF
1573
1574 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1575     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1576                "You probably need to set PKG_CONFIG_LIBDIR"\
1577                "to point to the right pkg-config files for your"\
1578                "build target"
1579 fi
1580
1581 # Silence clang warnings triggered by glib < 2.57.2
1582 cat > $TMPC << EOF
1583 #include <glib.h>
1584 typedef struct Foo {
1585     int i;
1586 } Foo;
1587 static void foo_free(Foo *f)
1588 {
1589     g_free(f);
1590 }
1591 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1592 int main(void) { return 0; }
1593 EOF
1594 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1595     if cc_has_warning_flag "-Wno-unused-function"; then
1596         glib_cflags="$glib_cflags -Wno-unused-function"
1597         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1598     fi
1599 fi
1600
1601 ##########################################
1602 # fdt probe
1603
1604 case "$fdt" in
1605   auto | enabled | internal)
1606     # Simpler to always update submodule, even if not needed.
1607     git_submodules="${git_submodules} dtc"
1608     ;;
1609 esac
1610
1611 ##########################################
1612 # check and set a backend for coroutine
1613
1614 # We prefer ucontext, but it's not always possible. The fallback
1615 # is sigcontext. On Windows the only valid backend is the Windows
1616 # specific one.
1617
1618 ucontext_works=no
1619 if test "$darwin" != "yes"; then
1620   cat > $TMPC << EOF
1621 #include <ucontext.h>
1622 #ifdef __stub_makecontext
1623 #error Ignoring glibc stub makecontext which will always fail
1624 #endif
1625 int main(void) { makecontext(0, 0, 0); return 0; }
1626 EOF
1627   if compile_prog "" "" ; then
1628     ucontext_works=yes
1629   fi
1630 fi
1631
1632 if test "$coroutine" = ""; then
1633   if test "$mingw32" = "yes"; then
1634     coroutine=win32
1635   elif test "$ucontext_works" = "yes"; then
1636     coroutine=ucontext
1637   else
1638     coroutine=sigaltstack
1639   fi
1640 else
1641   case $coroutine in
1642   windows)
1643     if test "$mingw32" != "yes"; then
1644       error_exit "'windows' coroutine backend only valid for Windows"
1645     fi
1646     # Unfortunately the user visible backend name doesn't match the
1647     # coroutine-*.c filename for this case, so we have to adjust it here.
1648     coroutine=win32
1649     ;;
1650   ucontext)
1651     if test "$ucontext_works" != "yes"; then
1652       error_exit "'ucontext' backend requested but makecontext not available"
1653     fi
1654     ;;
1655   sigaltstack)
1656     if test "$mingw32" = "yes"; then
1657       error_exit "only the 'windows' coroutine backend is valid for Windows"
1658     fi
1659     ;;
1660   *)
1661     error_exit "unknown coroutine backend $coroutine"
1662     ;;
1663   esac
1664 fi
1665
1666 ##################################################
1667 # SafeStack
1668
1669
1670 if test "$safe_stack" = "yes"; then
1671 cat > $TMPC << EOF
1672 int main(void)
1673 {
1674 #if ! __has_feature(safe_stack)
1675 #error SafeStack Disabled
1676 #endif
1677     return 0;
1678 }
1679 EOF
1680   flag="-fsanitize=safe-stack"
1681   # Check that safe-stack is supported and enabled.
1682   if compile_prog "-Werror $flag" "$flag"; then
1683     # Flag needed both at compilation and at linking
1684     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1685     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1686   else
1687     error_exit "SafeStack not supported by your compiler"
1688   fi
1689   if test "$coroutine" != "ucontext"; then
1690     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1691   fi
1692 else
1693 cat > $TMPC << EOF
1694 int main(void)
1695 {
1696 #if defined(__has_feature)
1697 #if __has_feature(safe_stack)
1698 #error SafeStack Enabled
1699 #endif
1700 #endif
1701     return 0;
1702 }
1703 EOF
1704 if test "$safe_stack" = "no"; then
1705   # Make sure that safe-stack is disabled
1706   if ! compile_prog "-Werror" ""; then
1707     # SafeStack was already enabled, try to explicitly remove the feature
1708     flag="-fno-sanitize=safe-stack"
1709     if ! compile_prog "-Werror $flag" "$flag"; then
1710       error_exit "Configure cannot disable SafeStack"
1711     fi
1712     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1713     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1714   fi
1715 else # "$safe_stack" = ""
1716   # Set safe_stack to yes or no based on pre-existing flags
1717   if compile_prog "-Werror" ""; then
1718     safe_stack="no"
1719   else
1720     safe_stack="yes"
1721     if test "$coroutine" != "ucontext"; then
1722       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1723     fi
1724   fi
1725 fi
1726 fi
1727
1728 ########################################
1729 # check if ccache is interfering with
1730 # semantic analysis of macros
1731
1732 unset CCACHE_CPP2
1733 ccache_cpp2=no
1734 cat > $TMPC << EOF
1735 static const int Z = 1;
1736 #define fn() ({ Z; })
1737 #define TAUT(X) ((X) == Z)
1738 #define PAREN(X, Y) (X == Y)
1739 #define ID(X) (X)
1740 int main(void)
1741 {
1742     int x = 0, y = 0;
1743     x = ID(x);
1744     x = fn();
1745     fn();
1746     if (PAREN(x, y)) return 0;
1747     if (TAUT(Z)) return 0;
1748     return 0;
1749 }
1750 EOF
1751
1752 if ! compile_object "-Werror"; then
1753     ccache_cpp2=yes
1754 fi
1755
1756 #################################################
1757 # clang does not support glibc + FORTIFY_SOURCE.
1758
1759 if test "$fortify_source" != "no"; then
1760   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1761     fortify_source="no";
1762   elif test -n "$cxx" && has $cxx &&
1763        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1764     fortify_source="no";
1765   else
1766     fortify_source="yes"
1767   fi
1768 fi
1769
1770 ##########################################
1771 # checks for sanitizers
1772
1773 have_asan=no
1774 have_ubsan=no
1775 have_asan_iface_h=no
1776 have_asan_iface_fiber=no
1777
1778 if test "$sanitizers" = "yes" ; then
1779   write_c_skeleton
1780   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1781       have_asan=yes
1782   fi
1783
1784   # we could use a simple skeleton for flags checks, but this also
1785   # detect the static linking issue of ubsan, see also:
1786   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1787   cat > $TMPC << EOF
1788 int main(int argc, char **argv)
1789 {
1790     return argc + 1;
1791 }
1792 EOF
1793   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1794       have_ubsan=yes
1795   fi
1796
1797   if check_include "sanitizer/asan_interface.h" ; then
1798       have_asan_iface_h=yes
1799   fi
1800
1801   cat > $TMPC << EOF
1802 #include <sanitizer/asan_interface.h>
1803 int main(void) {
1804   __sanitizer_start_switch_fiber(0, 0, 0);
1805   return 0;
1806 }
1807 EOF
1808   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1809       have_asan_iface_fiber=yes
1810   fi
1811 fi
1812
1813 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1814 # keep it separate until that is not the case.
1815 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1816   error_exit "TSAN is not supported with other sanitiziers."
1817 fi
1818 have_tsan=no
1819 have_tsan_iface_fiber=no
1820 if test "$tsan" = "yes" ; then
1821   write_c_skeleton
1822   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1823       have_tsan=yes
1824   fi
1825   cat > $TMPC << EOF
1826 #include <sanitizer/tsan_interface.h>
1827 int main(void) {
1828   __tsan_create_fiber(0);
1829   return 0;
1830 }
1831 EOF
1832   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1833       have_tsan_iface_fiber=yes
1834   fi
1835 fi
1836
1837 ##########################################
1838 # functions to probe cross compilers
1839
1840 container="no"
1841 runc=""
1842 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1843     case $($python "$source_path"/tests/docker/docker.py probe) in
1844         *docker) container=docker ;;
1845         podman) container=podman ;;
1846         no) container=no ;;
1847     esac
1848     if test "$container" != "no"; then
1849         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1850         runc=$($python "$source_path"/tests/docker/docker.py probe)
1851     fi
1852 fi
1853
1854 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1855 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1856 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1857 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1858 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1859 : ${cross_prefix_armeb="$cross_prefix_arm"}
1860 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1861 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1862 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1863 : ${cross_prefix_i386="i686-linux-gnu-"}
1864 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1865 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1866 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1867 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1868 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1869 : ${cross_prefix_mips="mips-linux-gnu-"}
1870 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1871 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1872 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1873 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1874 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1875 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1876 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1877 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1878 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1879 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1880
1881 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1882 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1883 : ${cross_cc_armeb="$cross_cc_arm"}
1884 : ${cross_cc_cflags_armeb="-mbig-endian"}
1885 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1886 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1887 : ${cross_cc_cflags_i386="-m32"}
1888 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1889 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1890 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1891 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1892 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1893 : ${cross_cc_sparc="$cross_cc_sparc64"}
1894 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1895 : ${cross_cc_cflags_x86_64="-m64"}
1896
1897 compute_target_variable() {
1898   eval "$2="
1899   if eval test -n "\"\${cross_prefix_$1}\""; then
1900     if eval has "\"\${cross_prefix_$1}\$3\""; then
1901       eval "$2=\"\${cross_prefix_$1}\$3\""
1902     fi
1903   fi
1904 }
1905
1906 have_target() {
1907   for i; do
1908     case " $target_list " in
1909       *" $i "*) return 0;;
1910       *) ;;
1911     esac
1912   done
1913   return 1
1914 }
1915
1916 # probe_target_compiler TARGET
1917 #
1918 # Look for a compiler for the given target, either native or cross.
1919 # Set variables target_* if a compiler is found, and container_cross_*
1920 # if a Docker-based cross-compiler image is known for the target.
1921 # Set got_cross_cc to yes/no depending on whether a non-container-based
1922 # compiler was found.
1923 #
1924 # If TARGET is a user-mode emulation target, also set build_static to
1925 # "y" if static linking is possible.
1926 #
1927 probe_target_compiler() {
1928   # reset all output variables
1929   got_cross_cc=no
1930   container_image=
1931   container_hosts=
1932   container_cross_cc=
1933   container_cross_ar=
1934   container_cross_as=
1935   container_cross_ld=
1936   container_cross_nm=
1937   container_cross_objcopy=
1938   container_cross_ranlib=
1939   container_cross_strip=
1940
1941   # We shall skip configuring the target compiler if the user didn't
1942   # bother enabling an appropriate guest. This avoids building
1943   # extraneous firmware images and tests.
1944   if test "${target_list#*$1}" = "$1"; then
1945       return 1
1946   fi
1947
1948   target_arch=${1%%-*}
1949   case $target_arch in
1950     aarch64) container_hosts="x86_64 aarch64" ;;
1951     alpha) container_hosts=x86_64 ;;
1952     arm) container_hosts="x86_64 aarch64" ;;
1953     cris) container_hosts=x86_64 ;;
1954     hexagon) container_hosts=x86_64 ;;
1955     hppa) container_hosts=x86_64 ;;
1956     i386) container_hosts=x86_64 ;;
1957     loongarch64) container_hosts=x86_64 ;;
1958     m68k) container_hosts=x86_64 ;;
1959     microblaze) container_hosts=x86_64 ;;
1960     mips64el) container_hosts=x86_64 ;;
1961     mips64) container_hosts=x86_64 ;;
1962     mipsel) container_hosts=x86_64 ;;
1963     mips) container_hosts=x86_64 ;;
1964     nios2) container_hosts=x86_64 ;;
1965     ppc) container_hosts=x86_64 ;;
1966     ppc64|ppc64le) container_hosts=x86_64 ;;
1967     riscv64) container_hosts=x86_64 ;;
1968     s390x) container_hosts=x86_64 ;;
1969     sh4) container_hosts=x86_64 ;;
1970     sparc64) container_hosts=x86_64 ;;
1971     tricore) container_hosts=x86_64 ;;
1972     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1973     xtensa*) container_hosts=x86_64 ;;
1974   esac
1975
1976   for host in $container_hosts; do
1977     test "$container" != no || continue
1978     test "$host" = "$cpu" || continue
1979     case $target_arch in
1980       aarch64)
1981         # We don't have any bigendian build tools so we only use this for AArch64
1982         container_image=debian-arm64-cross
1983         container_cross_prefix=aarch64-linux-gnu-
1984         container_cross_cc=${container_cross_prefix}gcc-10
1985         ;;
1986       alpha)
1987         container_image=debian-alpha-cross
1988         container_cross_prefix=alpha-linux-gnu-
1989         ;;
1990       arm)
1991         # We don't have any bigendian build tools so we only use this for ARM
1992         container_image=debian-armhf-cross
1993         container_cross_prefix=arm-linux-gnueabihf-
1994         ;;
1995       cris)
1996         container_image=fedora-cris-cross
1997         container_cross_prefix=cris-linux-gnu-
1998         ;;
1999       hexagon)
2000         container_image=debian-hexagon-cross
2001         container_cross_prefix=hexagon-unknown-linux-musl-
2002         container_cross_cc=${container_cross_prefix}clang
2003         ;;
2004       hppa)
2005         container_image=debian-hppa-cross
2006         container_cross_prefix=hppa-linux-gnu-
2007         ;;
2008       i386)
2009         container_image=fedora-i386-cross
2010         container_cross_prefix=
2011         ;;
2012       loongarch64)
2013         container_image=debian-loongarch-cross
2014         container_cross_prefix=loongarch64-unknown-linux-gnu-
2015         ;;
2016       m68k)
2017         container_image=debian-m68k-cross
2018         container_cross_prefix=m68k-linux-gnu-
2019         ;;
2020       microblaze)
2021         container_image=debian-microblaze-cross
2022         container_cross_prefix=microblaze-linux-musl-
2023         ;;
2024       mips64el)
2025         container_image=debian-mips64el-cross
2026         container_cross_prefix=mips64el-linux-gnuabi64-
2027         ;;
2028       mips64)
2029         container_image=debian-mips64-cross
2030         container_cross_prefix=mips64-linux-gnuabi64-
2031         ;;
2032       mipsel)
2033         container_image=debian-mipsel-cross
2034         container_cross_prefix=mipsel-linux-gnu-
2035         ;;
2036       mips)
2037         container_image=debian-mips-cross
2038         container_cross_prefix=mips-linux-gnu-
2039         ;;
2040       nios2)
2041         container_image=debian-nios2-cross
2042         container_cross_prefix=nios2-linux-gnu-
2043         ;;
2044       ppc)
2045         container_image=debian-powerpc-test-cross
2046         container_cross_prefix=powerpc-linux-gnu-
2047         container_cross_cc=${container_cross_prefix}gcc-10
2048         ;;
2049       ppc64|ppc64le)
2050         container_image=debian-powerpc-test-cross
2051         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
2052         container_cross_cc=${container_cross_prefix}gcc-10
2053         ;;
2054       riscv64)
2055         container_image=debian-riscv64-test-cross
2056         container_cross_prefix=riscv64-linux-gnu-
2057         ;;
2058       s390x)
2059         container_image=debian-s390x-cross
2060         container_cross_prefix=s390x-linux-gnu-
2061         ;;
2062       sh4)
2063         container_image=debian-sh4-cross
2064         container_cross_prefix=sh4-linux-gnu-
2065         ;;
2066       sparc64)
2067         container_image=debian-sparc64-cross
2068         container_cross_prefix=sparc64-linux-gnu-
2069         ;;
2070       tricore)
2071         container_image=debian-tricore-cross
2072         container_cross_prefix=tricore-
2073         container_cross_as=tricore-as
2074         container_cross_ld=tricore-ld
2075         break
2076         ;;
2077       x86_64)
2078         container_image=debian-amd64-cross
2079         container_cross_prefix=x86_64-linux-gnu-
2080         ;;
2081       xtensa*)
2082         container_hosts=x86_64
2083         container_image=debian-xtensa-cross
2084
2085         # default to the dc232b cpu
2086         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2087         ;;
2088     esac
2089     : ${container_cross_cc:=${container_cross_prefix}gcc}
2090     : ${container_cross_ar:=${container_cross_prefix}ar}
2091     : ${container_cross_as:=${container_cross_prefix}as}
2092     : ${container_cross_ld:=${container_cross_prefix}ld}
2093     : ${container_cross_nm:=${container_cross_prefix}nm}
2094     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2095     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2096     : ${container_cross_strip:=${container_cross_prefix}strip}
2097   done
2098
2099   try=cross
2100   case "$target_arch:$cpu" in
2101     aarch64_be:aarch64 | \
2102     armeb:arm | \
2103     i386:x86_64 | \
2104     mips*:mips64 | \
2105     ppc*:ppc64 | \
2106     sparc:sparc64 | \
2107     "$cpu:$cpu")
2108       try='native cross' ;;
2109   esac
2110   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2111   for thistry in $try; do
2112     case $thistry in
2113     native)
2114       target_cc=$cc
2115       target_ccas=$ccas
2116       target_ar=$ar
2117       target_as=$as
2118       target_ld=$ld
2119       target_nm=$nm
2120       target_objcopy=$objcopy
2121       target_ranlib=$ranlib
2122       target_strip=$strip
2123       ;;
2124     cross)
2125       target_cc=
2126       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2127         if eval has "\"\${cross_cc_$target_arch}\""; then
2128           eval "target_cc=\"\${cross_cc_$target_arch}\""
2129         fi
2130       else
2131         compute_target_variable $target_arch target_cc gcc
2132       fi
2133       target_ccas=$target_cc
2134       compute_target_variable $target_arch target_ar ar
2135       compute_target_variable $target_arch target_as as
2136       compute_target_variable $target_arch target_ld ld
2137       compute_target_variable $target_arch target_nm nm
2138       compute_target_variable $target_arch target_objcopy objcopy
2139       compute_target_variable $target_arch target_ranlib ranlib
2140       compute_target_variable $target_arch target_strip strip
2141       ;;
2142     esac
2143
2144     if test -n "$target_cc"; then
2145       case $target_arch in
2146         i386|x86_64)
2147           if $target_cc --version | grep -qi "clang"; then
2148             continue
2149           fi
2150           ;;
2151       esac
2152     elif test -n "$target_as" && test -n "$target_ld"; then
2153       # Special handling for assembler only targets
2154       case $target in
2155         tricore-softmmu)
2156           build_static=
2157           got_cross_cc=yes
2158           break
2159           ;;
2160         *)
2161           continue
2162           ;;
2163       esac
2164     else
2165       continue
2166     fi
2167
2168     write_c_skeleton
2169     case $1 in
2170       *-softmmu)
2171         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2172           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2173           got_cross_cc=yes
2174           break
2175         fi
2176         ;;
2177       *)
2178         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2179           build_static=y
2180           got_cross_cc=yes
2181           break
2182         fi
2183         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2184           build_static=
2185           got_cross_cc=yes
2186           break
2187         fi
2188         ;;
2189     esac
2190   done
2191   if test $got_cross_cc != yes; then
2192     build_static=
2193     target_cc=
2194     target_ccas=
2195     target_ar=
2196     target_as=
2197     target_ld=
2198     target_nm=
2199     target_objcopy=
2200     target_ranlib=
2201     target_strip=
2202   fi
2203   test -n "$target_cc"
2204 }
2205
2206 write_target_makefile() {
2207   echo "EXTRA_CFLAGS=$target_cflags"
2208   if test -z "$target_cc" && test -z "$target_as"; then
2209     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
2210     echo "$1: docker-image-$container_image" >> Makefile.prereqs
2211     if test -n "$container_cross_cc"; then
2212       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2213       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2214     fi
2215     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2216     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2217     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2218     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2219     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2220     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2221     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2222   else
2223     if test -n "$target_cc"; then
2224       echo "CC=$target_cc"
2225       echo "CCAS=$target_ccas"
2226     fi
2227     if test -n "$target_ar"; then
2228       echo "AR=$target_ar"
2229     fi
2230     if test -n "$target_as"; then
2231       echo "AS=$target_as"
2232     fi
2233     if test -n "$target_ld"; then
2234       echo "LD=$target_ld"
2235     fi
2236     if test -n "$target_nm"; then
2237       echo "NM=$target_nm"
2238     fi
2239     if test -n "$target_objcopy"; then
2240       echo "OBJCOPY=$target_objcopy"
2241     fi
2242     if test -n "$target_ranlib"; then
2243       echo "RANLIB=$target_ranlib"
2244     fi
2245     if test -n "$target_strip"; then
2246       echo "STRIP=$target_strip"
2247     fi
2248   fi
2249 }
2250
2251 ##########################################
2252 # check for vfio_user_server
2253
2254 case "$vfio_user_server" in
2255   enabled )
2256     if test "$git_submodules_action" != "ignore"; then
2257       git_submodules="${git_submodules} subprojects/libvfio-user"
2258     fi
2259     ;;
2260 esac
2261
2262 ##########################################
2263 # End of CC checks
2264 # After here, no more $cc or $ld runs
2265
2266 write_c_skeleton
2267
2268 if test "$fortify_source" = "yes" ; then
2269   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2270 fi
2271
2272 if test "$have_asan" = "yes"; then
2273   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2274   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2275   if test "$have_asan_iface_h" = "no" ; then
2276       echo "ASAN build enabled, but ASAN header missing." \
2277            "Without code annotation, the report may be inferior."
2278   elif test "$have_asan_iface_fiber" = "no" ; then
2279       echo "ASAN build enabled, but ASAN header is too old." \
2280            "Without code annotation, the report may be inferior."
2281   fi
2282 fi
2283 if test "$have_tsan" = "yes" ; then
2284   if test "$have_tsan_iface_fiber" = "yes" ; then
2285     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2286     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2287   else
2288     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2289   fi
2290 elif test "$tsan" = "yes" ; then
2291   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2292 fi
2293 if test "$have_ubsan" = "yes"; then
2294   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2295   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2296 fi
2297
2298 #######################################
2299 # cross-compiled firmware targets
2300
2301 # Set up build tree symlinks that point back into the source tree
2302 # (these can be both files and directories).
2303 # Caution: avoid adding files or directories here using wildcards. This
2304 # will result in problems later if a new file matching the wildcard is
2305 # added to the source tree -- nothing will cause configure to be rerun
2306 # so the build tree will be missing the link back to the new file, and
2307 # tests might fail. Prefer to keep the relevant files in their own
2308 # directory and symlink the directory instead.
2309 LINKS="Makefile"
2310 LINKS="$LINKS docs/config"
2311 LINKS="$LINKS pc-bios/optionrom/Makefile"
2312 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2313 LINKS="$LINKS pc-bios/vof/Makefile"
2314 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2315 LINKS="$LINKS tests/avocado tests/data"
2316 LINKS="$LINKS tests/qemu-iotests/check"
2317 LINKS="$LINKS python"
2318 LINKS="$LINKS contrib/plugins/Makefile "
2319 for f in $LINKS ; do
2320     if [ -e "$source_path/$f" ]; then
2321         mkdir -p "$(dirname ./"$f")"
2322         symlink "$source_path/$f" "$f"
2323     fi
2324 done
2325
2326 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
2327
2328 # Mac OS X ships with a broken assembler
2329 roms=
2330 if have_target i386-softmmu x86_64-softmmu && \
2331         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2332         test "$targetos" != "haiku" && \
2333         probe_target_compiler i386-softmmu; then
2334     roms="pc-bios/optionrom"
2335     config_mak=pc-bios/optionrom/config.mak
2336     echo "# Automatically generated by configure - do not modify" > $config_mak
2337     echo "TOPSRC_DIR=$source_path" >> $config_mak
2338     write_target_makefile >> $config_mak
2339 fi
2340
2341 if have_target ppc-softmmu ppc64-softmmu && \
2342         probe_target_compiler ppc-softmmu; then
2343     roms="$roms pc-bios/vof"
2344     config_mak=pc-bios/vof/config.mak
2345     echo "# Automatically generated by configure - do not modify" > $config_mak
2346     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2347     write_target_makefile >> $config_mak
2348 fi
2349
2350 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2351 # (which is the lowest architecture level that Clang supports)
2352 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2353   write_c_skeleton
2354   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2355   has_z900=$?
2356   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2357     if [ $has_z900 != 0 ]; then
2358       echo "WARNING: Your compiler does not support the z900!"
2359       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2360     fi
2361     roms="$roms pc-bios/s390-ccw"
2362     config_mak=pc-bios/s390-ccw/config-host.mak
2363     echo "# Automatically generated by configure - do not modify" > $config_mak
2364     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2365     write_target_makefile >> $config_mak
2366     # SLOF is required for building the s390-ccw firmware on s390x,
2367     # since it is using the libnet code from SLOF for network booting.
2368     git_submodules="${git_submodules} roms/SLOF"
2369   fi
2370 fi
2371
2372 #######################################
2373 # generate config-host.mak
2374
2375 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2376     exit 1
2377 fi
2378
2379 config_host_mak="config-host.mak"
2380
2381 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2382 echo >> $config_host_mak
2383
2384 echo all: >> $config_host_mak
2385 echo "GIT=$git" >> $config_host_mak
2386 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2387 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2388
2389 if test "$debug_tcg" = "yes" ; then
2390   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2391 fi
2392 if test "$mingw32" = "yes" ; then
2393   echo "CONFIG_WIN32=y" >> $config_host_mak
2394   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2395   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2396   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2397 else
2398   echo "CONFIG_POSIX=y" >> $config_host_mak
2399 fi
2400
2401 if test "$linux" = "yes" ; then
2402   echo "CONFIG_LINUX=y" >> $config_host_mak
2403 fi
2404
2405 if test "$darwin" = "yes" ; then
2406   echo "CONFIG_DARWIN=y" >> $config_host_mak
2407 fi
2408
2409 if test "$solaris" = "yes" ; then
2410   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2411 fi
2412 echo "SRC_PATH=$source_path" >> $config_host_mak
2413 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2414 if test "$modules" = "yes"; then
2415   echo "CONFIG_MODULES=y" >> $config_host_mak
2416 fi
2417
2418 # XXX: suppress that
2419 if [ "$bsd" = "yes" ] ; then
2420   echo "CONFIG_BSD=y" >> $config_host_mak
2421 fi
2422
2423 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2424
2425 if test "$have_asan_iface_fiber" = "yes" ; then
2426     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2427 fi
2428
2429 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2430     echo "CONFIG_TSAN=y" >> $config_host_mak
2431 fi
2432
2433 if test "$plugins" = "yes" ; then
2434     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2435 fi
2436
2437 if test -n "$gdb_bin"; then
2438     gdb_version=$($gdb_bin --version | head -n 1)
2439     if version_ge ${gdb_version##* } 9.1; then
2440         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2441         gdb_arches=$("$source_path/scripts/probe-gdb-support.py" $gdb_bin)
2442     else
2443         gdb_bin=""
2444     fi
2445 fi
2446
2447 if test "$container" != no; then
2448     echo "ENGINE=$container" >> $config_host_mak
2449     echo "RUNC=$runc" >> $config_host_mak
2450 fi
2451 echo "ROMS=$roms" >> $config_host_mak
2452 echo "MAKE=$make" >> $config_host_mak
2453 echo "PYTHON=$python" >> $config_host_mak
2454 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2455 echo "MESON=$meson" >> $config_host_mak
2456 echo "NINJA=$ninja" >> $config_host_mak
2457 echo "CC=$cc" >> $config_host_mak
2458 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2459 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2460 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2461 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2462 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2463 echo "GLIB_VERSION=$($pkg_config --modversion glib-2.0)" >> $config_host_mak
2464 if test "$glib_has_gslice" = "yes" ; then
2465     echo "HAVE_GLIB_WITH_SLICE_ALLOCATOR=y" >> $config_host_mak
2466 fi
2467 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2468 echo "EXESUF=$EXESUF" >> $config_host_mak
2469
2470 # use included Linux headers
2471 if test "$linux" = "yes" ; then
2472   mkdir -p linux-headers
2473   case "$cpu" in
2474   i386|x86_64)
2475     linux_arch=x86
2476     ;;
2477   ppc|ppc64)
2478     linux_arch=powerpc
2479     ;;
2480   s390x)
2481     linux_arch=s390
2482     ;;
2483   aarch64)
2484     linux_arch=arm64
2485     ;;
2486   loongarch*)
2487     linux_arch=loongarch
2488     ;;
2489   mips64)
2490     linux_arch=mips
2491     ;;
2492   *)
2493     # For most CPUs the kernel architecture name and QEMU CPU name match.
2494     linux_arch="$cpu"
2495     ;;
2496   esac
2497     # For non-KVM architectures we will not have asm headers
2498     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2499       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2500     fi
2501 fi
2502
2503 for target in $target_list; do
2504     target_dir="$target"
2505     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2506     mkdir -p "$target_dir"
2507     case $target in
2508         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2509         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2510     esac
2511 done
2512
2513 if test "$default_targets" = "yes"; then
2514   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2515 fi
2516
2517 if test "$ccache_cpp2" = "yes"; then
2518   echo "export CCACHE_CPP2=y" >> $config_host_mak
2519 fi
2520
2521 if test "$safe_stack" = "yes"; then
2522   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2523 fi
2524
2525 # tests/tcg configuration
2526 (config_host_mak=tests/tcg/config-host.mak
2527 mkdir -p tests/tcg
2528 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2529 echo "SRC_PATH=$source_path" >> $config_host_mak
2530 echo "HOST_CC=$host_cc" >> $config_host_mak
2531
2532 # versioned checked in the main config_host.mak above
2533 if test -n "$gdb_bin"; then
2534     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2535 fi
2536 if test "$plugins" = "yes" ; then
2537     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2538 fi
2539
2540 tcg_tests_targets=
2541 for target in $target_list; do
2542   arch=${target%%-*}
2543
2544   case $target in
2545     xtensa*-linux-user)
2546       # the toolchain is not complete with headers, only build softmmu tests
2547       continue
2548       ;;
2549     *-softmmu)
2550       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2551       qemu="qemu-system-$arch"
2552       ;;
2553     *-linux-user|*-bsd-user)
2554       qemu="qemu-$arch"
2555       ;;
2556   esac
2557
2558   if probe_target_compiler $target || test -n "$container_image"; then
2559       test -n "$container_image" && build_static=y
2560       mkdir -p "tests/tcg/$target"
2561       config_target_mak=tests/tcg/$target/config-target.mak
2562       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2563       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2564       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2565       echo "TARGET=$target" >> "$config_target_mak"
2566       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2567       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2568       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2569
2570       # will GDB work with these binaries?
2571       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
2572           echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
2573       fi
2574
2575       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2576       tcg_tests_targets="$tcg_tests_targets $target"
2577   fi
2578 done
2579
2580 if test "$tcg" = "enabled"; then
2581     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2582 fi
2583 )
2584
2585 if test "$skip_meson" = no; then
2586   cross="config-meson.cross.new"
2587   meson_quote() {
2588     test $# = 0 && return
2589     echo "'$(echo $* | sed "s/ /','/g")'"
2590   }
2591
2592   echo "# Automatically generated by configure - do not modify" > $cross
2593   echo "[properties]" >> $cross
2594
2595   # unroll any custom device configs
2596   for a in $device_archs; do
2597       eval "c=\$devices_${a}"
2598       echo "${a}-softmmu = '$c'" >> $cross
2599   done
2600
2601   echo "[built-in options]" >> $cross
2602   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2603   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2604   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2605   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2606   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2607   echo "[binaries]" >> $cross
2608   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2609   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2610   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2611   echo "ar = [$(meson_quote $ar)]" >> $cross
2612   echo "nm = [$(meson_quote $nm)]" >> $cross
2613   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2614   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2615   if has $sdl2_config; then
2616     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2617   fi
2618   echo "strip = [$(meson_quote $strip)]" >> $cross
2619   echo "widl = [$(meson_quote $widl)]" >> $cross
2620   echo "windres = [$(meson_quote $windres)]" >> $cross
2621   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2622   if test "$cross_compile" = "yes"; then
2623     cross_arg="--cross-file config-meson.cross"
2624     echo "[host_machine]" >> $cross
2625     echo "system = '$targetos'" >> $cross
2626     case "$cpu" in
2627         i386)
2628             echo "cpu_family = 'x86'" >> $cross
2629             ;;
2630         *)
2631             echo "cpu_family = '$cpu'" >> $cross
2632             ;;
2633     esac
2634     echo "cpu = '$cpu'" >> $cross
2635     if test "$bigendian" = "yes" ; then
2636         echo "endian = 'big'" >> $cross
2637     else
2638         echo "endian = 'little'" >> $cross
2639     fi
2640   else
2641     cross_arg="--native-file config-meson.cross"
2642   fi
2643   mv $cross config-meson.cross
2644
2645   rm -rf meson-private meson-info meson-logs
2646
2647   # Prevent meson from automatically downloading wrapped subprojects when missing.
2648   # You can use 'meson subprojects download' before running configure.
2649   meson_option_add "--wrap-mode=nodownload"
2650
2651   # Built-in options
2652   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2653   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2654   test "$static" = yes && meson_option_add -Dprefer_static=true
2655   test "$pie" = no && meson_option_add -Db_pie=false
2656   test "$werror" = yes && meson_option_add -Dwerror=true
2657
2658   # QEMU options
2659   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2660   test "$docs" != auto && meson_option_add "-Ddocs=$docs"
2661   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2662   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2663   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2664   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2665   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2666   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2667   run_meson() {
2668     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2669   }
2670   eval run_meson $meson_options
2671   if test "$?" -ne 0 ; then
2672       error_exit "meson setup failed"
2673   fi
2674 fi
2675
2676 # Save the configure command line for later reuse.
2677 cat <<EOD >config.status
2678 #!/bin/sh
2679 # Generated by configure.
2680 # Run this file to recreate the current configuration.
2681 # Compiler output produced by configure, useful for debugging
2682 # configure, is in config.log if it exists.
2683 EOD
2684
2685 preserve_env() {
2686     envname=$1
2687
2688     eval envval=\$$envname
2689
2690     if test -n "$envval"
2691     then
2692         echo "$envname='$envval'" >> config.status
2693         echo "export $envname" >> config.status
2694     else
2695         echo "unset $envname" >> config.status
2696     fi
2697 }
2698
2699 # Preserve various env variables that influence what
2700 # features/build target configure will detect
2701 preserve_env AR
2702 preserve_env AS
2703 preserve_env CC
2704 preserve_env CFLAGS
2705 preserve_env CXX
2706 preserve_env CXXFLAGS
2707 preserve_env LD
2708 preserve_env LDFLAGS
2709 preserve_env LD_LIBRARY_PATH
2710 preserve_env MAKE
2711 preserve_env NM
2712 preserve_env OBJCFLAGS
2713 preserve_env OBJCOPY
2714 preserve_env PATH
2715 preserve_env PKG_CONFIG
2716 preserve_env PKG_CONFIG_LIBDIR
2717 preserve_env PKG_CONFIG_PATH
2718 preserve_env PYTHON
2719 preserve_env QEMU_GA_MANUFACTURER
2720 preserve_env QEMU_GA_DISTRO
2721 preserve_env QEMU_GA_VERSION
2722 preserve_env SDL2_CONFIG
2723 preserve_env SMBD
2724 preserve_env STRIP
2725 preserve_env WIDL
2726 preserve_env WINDRES
2727 preserve_env WINDMC
2728
2729 printf "exec" >>config.status
2730 for i in "$0" "$@"; do
2731   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2732 done
2733 echo ' "$@"' >>config.status
2734 chmod +x config.status
2735
2736 rm -r "$TMPDIR1"